Multi-directional synchronous demolding structure and mold

Abstract

The utility model relates to die structure technical field discloses a kind of multidirectional synchronous demolding structure and mould, including mutually coordinated movable die and fixed die, and the sliding seat is slidably connected on movable die, and the driving mechanism that the sliding seat is slid on fixed die is equipped;The main core of the demolding direction and the sliding direction of the sliding seat is mutually parallel and is fixedly connected on the sliding seat, and the sliding seat is slidably connected with at least one sub-core, and the sliding direction of sub-core relative sliding seat and the demolding direction of sub-core mutually form angle.The utility model patent solves the problem that multiple different directions are not realized in smaller space in prior art.

Description

Technical Field

[0001] This utility model relates to the field of mold structure technology, specifically to a multi-directional synchronous demolding structure and mold. Background Technology

[0002] In the injection molding process of plastic products, when the product has an undercut structure, a side core-pulling structure is generally required in the mold structure to complete the forming of the undercut and subsequent demolding. During demolding, the side core-pulling structure must be demolded first before the moving mold and the fixed mold are finally demolded. For undercuts on ordinary products, a conventional side core-pulling structure can complete the undercut forming and demolding smoothly. However, for products with complex structures, if there are multiple undercuts with different directions, to ensure that all undercuts can be demolded smoothly, the general approach is to set a separate side core-pulling structure for each undercut, and to set a separate power source and connecting structure for each side core-pulling structure. When the side core-pulling structure is demolded, all side core-pulling structures complete the demolding process independently.

[0003] The aforementioned method of setting multiple side core pulls and each side core pull having its own power source and connecting structure, while capable of molding and demolding multiple undercuts on a product, presents significant challenges in practical applications. Simultaneously setting multiple independent power structures within the mold structure to control the demolding of multiple side core pulls is not only structurally complex and costly, but also extremely complex to control, leading to a high mold failure rate and impacting production efficiency. More importantly, for some smaller products with multiple undercuts in different directions, there is insufficient space to arrange the power sources and connecting structures for multiple side core pulls, affecting the injection molding process. Utility Model Content

[0004] The present invention aims to provide a multi-directional synchronous demolding structure and mold to solve the problem in the prior art that when injection molding products with multiple undercuts in different directions, multiple power structures and connecting structures need to be set on the mold, resulting in complex mold structure, high cost and complicated control.

[0005] To solve the above problems, the present invention adopts the following technical solution: a multi-directional synchronous demolding structure, including a moving mold and a fixed mold that cooperate with each other, a sliding seat is slidably connected to the moving mold, and a driving mechanism for driving the sliding seat to slide is provided on the fixed mold; a main core is fixedly connected to the sliding seat with the demolding direction parallel to the sliding direction of the sliding seat, and at least one sub-core is also slidably connected to the sliding seat, the sliding direction of the sub-core relative to the sliding seat is at an angle to the demolding direction of the sub-core.

[0006] The principles and beneficial effects of this application are as follows: In this application, a drive mechanism on the fixed mold drives a sliding seat to slide relative to the moving mold. When the sliding seat slides relative to the moving mold, it pushes the main core puller and the sub-core puller to slide relative to the moving mold, thus enabling the main core puller and the sub-core puller to complete the mold closing and demolding processes. Specifically, taking the demolding process as an example, when the sliding seat slides relative to the moving mold under the action of the drive mechanism, causing the main core puller and the sub-core puller to move away from the injection-molded product, since the demolding direction of the main core puller is the same as the sliding direction of the sliding seat, the sliding seat can directly pull the main core puller to demold. At the same time, when the sliding seat slides, it will drive the sub-core puller to slide. The sub-core puller slides in conjunction with the sliding seat, and the demolding direction of the sub-core puller forms an angle with the sliding direction of the sub-core puller relative to the sliding seat. Therefore, when the sliding seat slides, it will drive the sub-core puller to slide and demold. The sub-core puller slides along the demolding direction of the sub-core puller, and relative sliding occurs between the sub-core puller and the sliding seat.

[0007] Therefore, by adopting the technical solution of this application, when a sliding seat is set on one side of the product, multiple undercuts in different directions can be demolded simultaneously using a single sliding seat. Compared with the prior art, which requires a separate demolding structure for each undercut, the multi-directional synchronous demolding structure in this application is simpler in structure, lower in cost, and easier and more precise in control. Especially when the distance between undercuts in different directions on the product is small, the conventional side core-pulling structure does not have enough space to arrange the demolding structure. However, by adopting the method in this application, since only one sliding seat is needed, all undercuts can be demolded simultaneously, that is, demolding of multiple undercuts in different directions can be achieved even in a small space.

[0008] Preferably, as an improvement, a sliding part is fixedly connected to the core-pulling part, and a sliding guide groove is provided on the sliding seat, with the sliding part slidingly engaging with the sliding guide groove.

[0009] In this design, a sliding part is fixedly connected to the core pulling part, and a sliding guide groove is set on the sliding seat. By utilizing the sliding cooperation between the sliding guide groove and the sliding part, the core pulling part can be made more stable, smooth and precise during the demolding process.

[0010] Preferably, as an improvement, the cross-section of the sliding guide groove is square, the sliding part includes a slider fixedly connected to the core puller, and the guiding direction of the sliding guide groove is perpendicular to the demolding direction of the core puller.

[0011] In this design, the cross-section of the sliding guide groove is set to square, and the cross-section of the corresponding slider is also set to square, so that the slider and the sliding guide groove slide in surface contact, further improving the accuracy and stability of the sliding engagement process. In addition, although the sliding direction of the sub-core pull relative to the sliding seat and the demolding direction of the sub-core pull can effectively drive the sub-core pull to demold, in this design, the guiding direction of the sliding guide groove is perpendicular to the demolding direction of the sub-core pull, which allows the sliding guide groove to drive the sub-core pull to slide and demold more smoothly and efficiently.

[0012] Preferably, as an improvement, the driving mechanism includes a mounting base and an inclined guide post fixedly connected to the mounting base. The mounting base is fixedly connected to the fixed mold, and the sliding base is provided with an inclined guide hole that slides with the inclined guide post.

[0013] In this design, when the moving mold slides away from the fixed mold during the mold opening stage, the mounting base connected to the fixed mold and the inclined guide post cooperate with the inclined guide hole on the sliding seat. The inclined guide post and inclined guide hole can be used to drive the sliding seat to slide relative to the moving mold. The structure is simple and can stably drive the sliding seat to slide.

[0014] Preferably, as an improvement, a wear-resistant component is fixedly connected to the sliding seat, the wear-resistant component is provided with an inclined wear-resistant surface, and the mounting seat is provided with a clamping surface that abuts against the wear-resistant surface, and the clamping force of the clamping surface against the wear-resistant surface is along the direction of driving the sliding seat towards clamping the main core puller.

[0015] In this design, a wear-resistant component is fixedly connected to the sliding seat, and an inclined wear-resistant surface is provided on the wear-resistant component. When the mold is closed, the mounting seat slides towards the sliding seat, so that the mating surface and the wear-resistant surface come into contact and abut against each other. Under the action of the mating force of the mating surface and the wear-resistant surface, the sliding seat can be driven to abut against the main core puller. Thus, when the mold is closed, the main core puller and the sub-core puller connected to the sliding seat can stably cooperate with the moving mold and / or the fixed mold to form a casting cavity, effectively ensuring the casting quality of the undercut on the product. In addition, the wear-resistant component has good wear resistance and can stably and accurately rub against the mating surface on the mounting seat for a long time, which also helps to reduce the wear of the inclined guide post.

[0016] Preferably, as an improvement, the sliding seat is provided with a mounting groove, and the wear-resistant component includes a wear-resistant plate fixedly connected in the mounting groove, with the wear-resistant surface of the wear-resistant plate protruding outside the mounting groove.

[0017] This design incorporates mounting slots for installing wear-resistant parts, enabling the parts to be connected to the sliding seat more precisely and stably. This allows the mating surface and the wear-resistant surface to abut against each other, facilitating precise mold closing of the main core pull and the sub-core pull.

[0018] Preferably, as an improvement, the number of wear-resistant plates is multiple, and the multiple wear-resistant plates are fixedly connected to the sliding seat in a side-by-side or array.

[0019] Compared to directly machining a large wear-resistant surface, this solution uses multiple wear-resistant plates, which reduces the area of ​​the wear-resistant surface processed in a single operation, thus effectively controlling the precision of the wear-resistant surface processing.

[0020] Preferably, as an improvement, a sliding guide is fixedly connected to the moving mold, and the sliding seat slides in conjunction with the sliding guide.

[0021] In this solution, the sliding guide provides guidance for the sliding process of the sliding seat, enabling the sliding seat to drive the main core pulling and sub-core pulling more accurately and smoothly to complete the demolding and mold closing actions.

[0022] Preferably, as an improvement, the sliding guide includes an upper guide block and a lower guide block. The upper guide block is located on one side of the sliding seat, and the sliding seat is provided with an upper sliding groove that slides and engages with the upper guide block. The lower guide block is located at the bottom of the sliding seat, and the bottom of the sliding seat is provided with a lower sliding groove that slides and engages with the lower guide block.

[0023] In this design, the upper guide block is located on one side of the sliding seat and can contact the sliding seat from top to bottom, while the lower guide block is located at the bottom of the sliding seat and can contact the sliding seat from bottom to top. This ensures that the upper and lower sides of the sliding seat are limited and guided during the sliding process relative to the moving mold, so that the sliding seat can slide more smoothly and accurately along the moving mold.

[0024] A mold, comprising the aforementioned multidirectional synchronous demolding structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a multi-directional synchronous demolding structure in Embodiment 1 of this utility model.

[0026] Figure 2 for Figure 1 A schematic diagram showing the hidden motion model.

[0027] Figure 3 for Figure 2 A diagram showing a view from a low angle.

[0028] Figure 4 This is a schematic diagram showing the connection between the main core puller, the sub-core puller, and the sliding seat in Embodiment 1 of this utility model.

[0029] Figure 5 This is a schematic diagram of the core-pulling process in Embodiment 1 of this utility model.

[0030] Figure 6 This is a schematic diagram of a multi-directional synchronous demolding structure after the moving mold is hidden in Embodiment 2 of this utility model.

[0031] Figure 7 for Figure 6 A schematic diagram showing the hidden mounting base and the angled guide post.

[0032] Figure 8 This is a front view of a multi-directional synchronous demolding structure according to Embodiment 2 of this utility model. Detailed Implementation

[0033] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: moving mold 1, sliding seat 2, oblique guide hole 201, side protrusion 202, downward groove 203, sliding guide groove 204, mounting groove 205, mounting seat 3, abutting surface 301, oblique guide post 4, upper guide block 5, lower guide block 6, main core pull 7, sub-core pull 8, slider 801, wear-resistant plate 9, and wear-resistant surface 901.

[0034] Example 1 This embodiment is as shown in the appendix. Figure 1 As shown: A multi-directional synchronous demolding structure includes a moving mold 1 and a fixed mold that cooperate with each other. For ease of showing other structures, Figure 1 Only the moving mold 1 is shown, while the fixed mold is not shown. Figure 2 A sliding seat 2 is slidably connected to the moving mold 1, and a driving mechanism for driving the sliding seat 2 to slide relative to the moving mold 1 is connected to the fixed mold. In this embodiment, the driving mechanism includes a mounting base 3 and an inclined guide post 4 fixedly connected to the mounting base 3. The mounting base 3 is fixedly connected to the fixed mold by screws. The mounting base 3 has a stepped hole, and the inclined guide post 4 has a stepped surface that mates with the stepped hole. When the mounting base 3 is fixed to the fixed mold, the top end of the inclined guide hole 201 is pressed and fixed between the mounting base 3 and the fixed mold; at the same time, combined with Figure 4 The sliding seat 2 has an inclined guide hole 201 that slides obliquely with the inclined guide post 4. When the moving mold 1 approaches or moves away from the fixed mold, the sliding seat 2 can slide relative to the moving mold 1 through the cooperation of the inclined guide post 4 and the inclined guide hole 201. In order to improve the smoothness of driving the sliding seat 2 to slide, the number of inclined guide posts 4 is set to two and the number of corresponding inclined guide holes 201 is also set to two.

[0035] Combination Figure 1 , Figure 2 and Figure 3To ensure a smoother, more stable, and precise sliding motion of the sliding seat 2 relative to the moving mold 1, a sliding guide portion is fixedly connected to the moving mold 1 in this embodiment, and the sliding seat 2 slides in conjunction with the sliding guide portion. Specifically, the sliding guide portion includes an upper guide block 5 and a lower guide block 6 fixedly connected to the moving mold 1 by screws. There are two upper guide blocks 5, and the two upper guide blocks 5 are located on both sides of the sliding seat 2. Side protrusions 202 are integrally formed on both sides of the sliding seat 2. The side protrusions 202 are located between the upper guide blocks 5 and the moving mold 1, and an upper sliding groove is formed between the side protrusions 202 and the sliding seat 2, so that the upper guide blocks 5 can slide in conjunction with the upper sliding groove to limit and guide the sliding of the sliding seat 2 relative to the moving mold 1. In addition, the lower guide block 6 is set at the bottom of the sliding seat 2 along the sliding direction of the sliding seat 2. The bottom of the sliding seat 2 has a lower sliding groove 203 that slides in conjunction with the lower guide block 6, so that the bottom of the sliding seat 2 can be limited and guided by the lower guide block 6. By relying on the guiding effect of the upper guide block 5 and the lower guide block 6, the sliding seat 2 can slide more accurately relative to the moving mold 1, thereby driving the demolding and mold closing process.

[0036] Combination Figure 2 and Figure 4 A main core puller 7, whose demolding direction is parallel to the sliding direction of the sliding seat 2, is fixedly connected to the sliding seat 2. At least one secondary core puller 8 is also slidably connected to the sliding seat 2. The sliding direction of the secondary core puller 8 relative to the sliding seat 2 forms an angle with the demolding direction of the secondary core puller 8. In this embodiment, there are two secondary core pullers 8, and the two secondary core pullers 8 are located on opposite sides of the main core puller 7. In other embodiments besides this one, the number of secondary core pullers 8 can be one or more, which will not be illustrated here. Figure 5 A sliding part is fixedly connected to the core puller 8, and a sliding guide groove 204 is provided on the sliding seat 2. The sliding part slides in cooperation with the sliding guide groove 204. Specifically, the cross-section of the sliding guide groove 204 is square, which can be milled directly on the sliding seat 2 using a milling cutter. The sliding part includes a slider 801 fixedly connected to the end of the core puller 8 by an integral molding method. The cross-section of the slider 801 is also square and forms a surface contact with the sliding guide groove 204, so that the slider 801 can slide smoothly and stably relative to the sliding guide groove 204. In addition, in this embodiment, when the sliding guide groove 204 is set, the guiding direction of the sliding guide groove 204 on the slider 801 is perpendicular to the demolding direction of the corresponding core puller 8, which enables the slider 801 to drive the core puller 8 to slide demold more stably and accurately.

[0037] In this embodiment, by simultaneously connecting a main core puller 7 and multiple sub-core pullers 8 to the sliding seat 2, during the demolding process, when the sliding seat 2 slides relative to the moving mold 1, it can simultaneously drive the main core puller 7 and the sub-core pullers 8 to complete the demolding action. Moreover, the demolding directions of the main core puller 7 and the sub-core pullers 8 are different, so the demolding action of multiple undercuts in different directions on the product can be completed. The demolding structure is simpler, the equipment cost is lower, and the demolding control is more convenient. Especially for some special products, when there are multiple undercuts in different directions on the product and the distance between the undercuts is small, there is not enough space to set up a conventional undercut demolding structure. Since the demolding structure in this solution can use the same sliding seat 2 to drive the demolding, the demolding of multi-directional undercuts can be successfully completed even in a narrow space.

[0038] A mold, comprising the aforementioned multi-directional synchronous demolding structure, effectively simplifies the structure, reduces costs and lowers the difficulty of demolding control while ensuring multi-directional undercut demolding is completed. In particular, it can also be effectively applied to multi-directional undercut demolding in confined spaces.

[0039] Example 2 The difference between Example 2 and Example 1 is that: [The text abruptly ends here, likely due to an incomplete sentence or a formatting error.] Figure 6 , Figure 7 and Figure 8 In this embodiment, a wear-resistant component is fixedly connected to the sliding seat 2. The wear-resistant component has an inclined wear-resistant surface 901. The mounting seat 3 has a pressing surface 301 that slides and abuts against the wear-resistant surface 901. The lateral component of the pressing force of the pressing surface 301 against the wear-resistant surface 901 is along the direction of driving the sliding seat 2 towards pressing against the main core puller 7. Specifically, in this embodiment, the wear-resistant component includes multiple wear-resistant plates 9. The multiple wear-resistant plates 9 can be fixed to the sliding seat 2 in a horizontal row or array. Figure 5 The illustration shows two wear-resistant plates 9 arranged horizontally side-by-side and fixed to the sliding seat 2 with screws. In other embodiments besides this one, the number and arrangement of the wear-resistant plates 9 can be different, which will not be described in detail here. Meanwhile, in this embodiment, a horizontally arranged mounting groove 205 is provided on the sliding seat 2. All wear-resistant plates 9 are installed and fixed within the mounting groove 205, and the wear-resistant surface 901 protrudes beyond the mounting groove 205 so that the wear-resistant surface 901 cooperates with the abutment surface 301.

[0040] In this embodiment, by setting a wear-resistant surface 901 and abutting surface 301 that slide and abut against each other, during the mold closing process, the sliding seat 2 follows the moving mold 1 to approach the mounting seat 3. The abutting surface 301 on the mounting seat 3 contacts and abuts against the wear-resistant surface 901. When the mold closing is completed, the sliding seat 2 is abutted by the abutting surface 301 and maintains the mold closing state more stably, so that the product can be better injection molded.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-directional synchronous demolding structure, comprising a moving mold and a fixed mold that cooperate with each other, characterized in that: The moving mold is slidably connected to a sliding seat, and the fixed mold is provided with a driving mechanism for driving the sliding seat to slide; a main core puller with a demolding direction parallel to the sliding direction of the sliding seat is fixedly connected to the sliding seat, and at least one sub-core puller is also slidably connected to the sliding seat, the sliding direction of the sub-core puller relative to the sliding seat is at an angle to the demolding direction of the sub-core puller.

2. The multi-directional synchronous demolding structure according to claim 1, characterized in that: The core-pulling device is fixedly connected to a sliding part, and the sliding seat is provided with a sliding guide groove, with the sliding part slidingly engaging with the sliding guide groove.

3. The multi-directional synchronous demolding structure according to claim 2, characterized in that: The sliding guide groove has a square cross-section, and the sliding part includes a slider fixedly connected to the core puller. The guiding direction of the sliding guide groove is perpendicular to the demolding direction of the core puller.

4. The multi-directional synchronous demolding structure according to claim 1, characterized in that: The driving mechanism includes a mounting base and an inclined guide post fixedly connected to the mounting base. The mounting base is fixedly connected to the fixed mold, and the sliding base is provided with an inclined guide hole that slides with the inclined guide post.

5. The multi-directional synchronous demolding structure according to claim 1, characterized in that: A wear-resistant component is fixedly connected to the sliding seat. The wear-resistant component has an inclined wear-resistant surface. The mounting seat has a clamping surface that abuts against the wear-resistant surface. The clamping force of the clamping surface against the wear-resistant surface is along the direction of driving the sliding seat towards clamping the main core puller.

6. The multi-directional synchronous demolding structure according to claim 5, characterized in that: The sliding seat is provided with a mounting groove, and the wear-resistant part includes a wear-resistant plate fixedly connected in the mounting groove, with the wear-resistant surface of the wear-resistant plate protruding out of the mounting groove.

7. A multi-directional synchronous demolding structure according to claim 6, characterized in that: The wear-resistant plates are multiple, and the multiple wear-resistant plates are fixedly connected to the sliding seat in a side-by-side or array.

8. The multi-directional synchronous demolding structure according to claim 1, characterized in that: A sliding guide is fixedly connected to the moving mold, and the sliding seat slides in conjunction with the sliding guide.

9. A multi-directional synchronous demolding structure according to claim 8, characterized in that: The sliding guide includes an upper guide block and a lower guide block. The upper guide block is located on one side of the sliding seat, and the sliding seat is provided with an upper sliding groove that slides with the upper guide block. The lower guide block is located at the bottom of the sliding seat, and the bottom of the sliding seat is provided with a lower sliding groove that slides with the lower guide block.

10. A mold, characterized in that: Including a multi-directional synchronous demolding structure as described in any one of claims 1-9.

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